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CVE-2026-53759— linuxfabrik-lib: Insecure creation of SQLite databases

Quick assessment

Affected
Linuxfabrik monitoring-plugins
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linuxfabrik Python Libraries是Linuxfabrik组织开源的一系列Python开发库。 Linuxfabrik Python Libraries 4.2.0之前版本存在资源管理错误漏洞，该漏洞源于db_sqlite.py在共享/tmp目录的可预测路径下创建SQLite数据库并跟随攻击者创建的符号链接，可能导致任意文件覆盖、拒绝服务或通过特制回滚日志或预写日志操纵现有SQLite数据库。

CVSS 2.0 · Low EPSS 0.18% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
Linuxfabrik monitoring-plugins < 4.2.0 affected
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I. Basic Information for CVE-2026-53759

Vulnerability Information
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Vulnerability Title
linuxfabrik-lib: Insecure creation of SQLite databases
Source: CVE Program / CVE List V5
Vulnerability Description
linuxfabrik-lib provides Python modules for database access, caching, shell execution, and API integrations. Prior to version 4.2.0, db_sqlite.py created SQLite databases at predictable paths in the shared /tmp directory and followed attacker-created symbolic links at those paths. An attacker who controls a local monitoring account can create a symlink such as /tmp/linuxfabrik-monitoring-plugins-docker-stats.db and then trigger a sudo-authorized plugin, causing the root process to create or modify the symlink target. The primitive can overwrite arbitrary paths, cause denial of service, or manipulate an existing SQLite database through a crafted rollback journal or write-ahead log. The Monitoring Plugins integration also moved plugin caches through lib.db_sqlite.get_db_path() so they use the secured per-user directory. This issue is fixed in version 4.2.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的临时文件
Source: CVE Program / CVE List V5
Vulnerability Title
Linuxfabrik Python Libraries 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linuxfabrik Python Libraries是Linuxfabrik组织开源的一系列Python开发库。 Linuxfabrik Python Libraries 4.2.0之前版本存在资源管理错误漏洞，该漏洞源于db_sqlite.py在共享/tmp目录的可预测路径下创建SQLite数据库并跟随攻击者创建的符号链接，可能导致任意文件覆盖、拒绝服务或通过特制回滚日志或预写日志操纵现有SQLite数据库。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linuxfabrik monitoring-plugins < 4.2.0 -

II. Public POCs for CVE-2026-53759

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III. Intelligence Information for CVE-2026-53759

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Patches & Fixes for CVE-2026-53759 (2)

Vendor Advisories for CVE-2026-53759 (1)

Same Patch Batch · Linuxfabrik · 2026-08-18 · 5 CVEs total

CVE-2026-55426 7.8 HIGH linuxfabrik-lib: Local privilege escalation using embedded command
CVE-2026-52817 7.0 HIGH Linuxfabrik Monitoring Plugins Sudoers: /usr/bin/apt-get arguments allow privilege escalat
CVE-2026-73973 5.5 MEDIUM Linuxfabrik Monitoring Plugins: Arbitrary root file disclosure via unconfined --filename i
CVE-2026-73974 5.5 MEDIUM linuxfabrik-lib: Arbitrary root file read via live --test argument (lib.lftest) across sud

IV. Related Vulnerabilities

Same product: monitoring-plugins
Same vendor: Linuxfabrik
Same weakness: CWE-377

V. Comments for CVE-2026-53759

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